A group of 39 randomly selected students have a mean score of 19.5 with a standard deviation of 3.2 on a placement test. What is the 99% confidence interval for the mean score, μ, of all students taking the test? 28.2 < μ < 30.8 18.4 < μ < 20.6 27.9 < μ < 31.1 18.1 < μ < 20.9
A group of 39 randomly selected students have a mean score of 19.5 with a standard deviation of 3.2 on a placement test. What is the 99% confidence interval for the mean score, μ, of all students taking the test? 28.2 < μ < 30.8 18.4 < μ < 20.6 27.9 < μ < 31.1 18.1 < μ < 20.9
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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7) A group of 39 randomly selected students have a
a placement test. What is the 99% confidence interval for the mean score, μ, of all students taking the test?
28.2 < μ < 30.8
18.4 < μ < 20.6
27.9 < μ < 31.1
18.1 < μ < 20.9
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